VTAM® supports the following types of LANs through the IBM® Open Systems Adapter (configured in SNA mode):

• Ethernet or Ethernet-type LAN
• Token-ring network
• Fiber distributed data interface (FDDI)

LANs attached to VTAM through an IBM Open Systems Adapter are defined to VTAM in the same way as LANs attached through an IBM 3172 Nways Interconnect Controller. To define LAN connections through the IBM Open Systems Adapter, apply the information about defining LAN connections through the IBM 3172 Nways Interconnect Controller, found in External communication adapter (XCA) connections and IBM 3172 Nways Interconnect Controller connections between APPN nodes.